ADE simulation files -- error

 OK I found a walk aroud.

Instead of writing the stimuli

simulator lang=spectre
_vAddr\<3\> (Addr\<3\> 0) vsource val0=0 val1=0 period=500p width=250p type=pulse

I add an extra "\" and the stimuli

simulator lang=spectre
_vAddr\\<3\\> (Addr\\<3\\> 0) vsource val0=0 val1=0 period=500p width=250p type=pulse

 is OK

Is this the proper way of writing stimuli files?

Thanks,

Thodoros

The stimulus file goes through a mapping process which allows "schematic" names to be used via the [#...] syntax. These get mapped into whatever was used in the netlist (via mapping). So you'd use something like this:

v1 ([#bus<0>] 0) vsource type=sine freq=1M ampl=1
v2 ([#bus<1>] 0) vsource type=sine freq=2M ampl=1.5
v3 ([#bus<2>] 0) vsource type=sine freq=3M ampl=2.0
v4 ([#bus<3>] [#/gnd!]) vsource type=sine freq=4M ampl=2.5

Note that there is a bug in IC61X (CCR 752498) where this doesn't work in some cases. You need to use 

envSetVal("asimenv" "mappingMode" 'string "oss")

Before starting ADE. And you may need to do a Simulation->Netlist->Recreate to force it to renetlist after making the change. This changes the netlist mapping back to the IC5141 method (see http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:ViewSolution;solutionNumber=11334086 )

Note that the instance names are presumably not that critical, so you can call them whatever you want (they don't need to map to a bus name)

Regards,

Andrew.

 Andrew,

Thanks for the responce on the specific issue which was quite helpful.

I was worried some time now if we could use a bus rage (i.e. [#bus<0:15>]) in a stimulus file, or if there is a way of doing so. I understand that it is difficult for the analog to perform so, but if the bus is set to bit function could we use the range?

Thanks in advance,

Thodoros

Hi Thodoros,

Since the spectre language doesn't support buses (all the nets you see in the netlist are scalar) it doesn't really make sense to provide a whole bus (or even a multi-bit slice of a bus) such as [#bus<0:15>]. If you want to drive a vector, you should use the vector or vcd support in spectre which allows digital stimulus to be given. This is in the Setup->Simulation Files (VCD File, EVCD File, Vector File) in ADE.

Regards,

Andrew.

Hello Andrew,

I googled a lot to solve my question here http://www.cadence.com/Community/forums/p/18309/1260848.aspx#1260848, and found your post.  I think it may be helpful to use a vector file to generate the control signals for my 924 bits, but I don't know how.  I actually only need to set them to be either 0's or 1's, and I think if I can name them as [#bus<1:924>] and set a vector file it should work.  Could you please give me some guidelines?  Which manual should I refer to?

Thanks,

Tao

Frank has given you the answer in your original question thread. Also, the format of the vector files is covered in the documentation (and "spectre -h vector" gives some good pointers).

Regards,

Andrew.